It was pointed out by Dmitry that my fix doesn't make much sense. Any other ideas much appreciated.
On Mon, 5 Dec 2022 at 10:53, Stanislav Zaikin via lists.fd.io <zstaseg= gmail....@lists.fd.io> wrote: > Hello folks, > > I've got a crash on v22.10 > vnet[2391390]: received signal SIGSEGV, PC 0x7f4847feb994, faulting > address 0x0 > vnet[2391390]: #0 0x00007f484805e85b 0x7f484805e85b > vnet[2391390]: #1 0x00007f4847f753c0 0x7f4847f753c0 > vnet[2391390]: #2 0x00007f4847feb994 vlib_get_next_frame_internal + 0x64 > vnet[2391390]: #3 0x00007f484814e729 vlib_buffer_enqueue_to_next_fn_hsw + > 0x3289 > vnet[2391390]: #4 0x00007f4848dcbf2e ip4_rewrite_node_fn_hsw + 0x28ae > vnet[2391390]: #5 0x00007f4847fee6fb vlib_worker_loop + 0x1b3b > vnet[2391390]: #6 0x00007f4848040afa vlib_worker_thread_fn + 0xaa > vnet[2391390]: #7 0x00007f484803ae01 vlib_worker_thread_bootstrap_fn + > 0x51 > vnet[2391390]: #8 0x00007f4847f69609 start_thread + 0xd9 > vnet[2391390]: #9 0x00007f4847ca7163 clone + 0x43 > > (gdb) info line *0x7f4847feb994 > Line 371 of "/home/runner/work/vpp/vpp/src/vlib/main.c" starts at address > 0x7f4847feb994 <vlib_get_next_frame_internal+100> and ends at > 0x7f4847feb998 <vlib_get_next_frame_internal+104>. > > And the code for this line is following: > n_used = f->n_vectors; > > Which means that vlib_node_runtime_get_next_frame allocated > vlib_next_frame with NULL in the frame field. > > I wonder how I can debug it further since vpp caught a segfault signal and > in the core file I've got a completely different stacktrace. Is there a > way to find exactly this vlib_next_frame structure? Any ideas are much > appreciated. > > -- > Best regards > Stanislav Zaikin > > > > -- Best regards Stanislav Zaikin
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